bottle-session非路由参数方式的调用方法

一般bottle-session的使用要在路由中以 def callback(session) 的方式调用，对于已有的网站改造比较麻烦，现有一种方法进行改造，具体如下： 新建一类：mybottlesession.py

import redis
import uuid
from bottle_session import Session
from config import redis_config
from common import log_helper

class MySession():
    """A bottle session object .
    基于redis 及bottle-session.py
    以非插件的形式获取session,方便进行权限验证
    注意：cookie_name须与bottle_session中一致
    一般在globalvar.py中进行应用,集中在web_helper.py中get_session()调用
    """

    def __init__(self,host='localhost',port=6379,db=0,cookie_name='bottle.session',cookie_lifetime=600,keyword='session',password=None):
        self.host = host
        self.port = port
        self.db = db
        self.cookie_name = cookie_name
        self.cookie_lifetime = cookie_lifetime
        self.keyword = keyword
        self.password = password
        self.connection_pool = None
        self.session=None

    def SetConnection_pool(self,connection_pool):
        self.connection_pool=connection_pool
    def GetSession(self):
        if self.session is not None:
            print('无需重新生成，直接返回session')
            return self.session
        if self.connection_pool is None:
            self.connection_pool = redis.ConnectionPool(host=self.host, port=self.port, db=self.db, password=self.password)
        r = redis.Redis(connection_pool=self.connection_pool)
        self.session=Session(r,self.cookie_name,self.cookie_lifetime)
        return self.session

新建一文件globalvar.py进行引用：

import bottle
import bottle_session
from config import redis_config
import redis
from common import mybottlesession,log_helper

def _init():

    global app
    global plugin
    global m_session
    app = bottle.default_app()#bottle.Bottle()#
    #app = bottle.app()
    # 设置redis配置参数

    _redis = redis_config.REDIS_SESSION
    pool = redis.ConnectionPool(max_connections=5,host=_redis.get('server','localhost'),port=_redis.get('port',6379),db=_redis.get('db',0),password=_redis.get('pwd', ''))
    plugin = bottle_session.SessionPlugin()
    plugin.connection_pool=pool
    plugin.cookie_lifetime=600

    #plugin = bottle_session.SessionPlugin(cookie_lifetime=600)
    #plugin = bottle_session.SessionPlugin(cookie_lifetime=600,host=_redis.get('server','localhost'),port=_redis.get('port',6379),db=_redis.get('db',0),password=_redis.get('pwd', None))
    app.install(plugin)
    #=============================生成全局session变量
    m_session =mybottlesession.MySession()
    try:

        m_session.SetConnection_pool(pool)
    except Exception as e:
        log_helper.info('连接session-redis出错:(' + str(_redis) + ')' + str(e.args))
        pass

def getApp():
    return app

def getSession():
    return m_session.GetSession()

主程序中调用：

#=========使用bottle-session,redis方式实现，可跨域使用。
import globalvar as gl
# 函数主入口
if __name__ == '__main__':
    #加入session插件
    gl._init()
    run(app=gl.getApp(),host='0.0.0.0', port=8090, server=GeventWebSocketServer, debug=True)

改造完成后替换原来beaker，改动比较少，同时支持跨域使用session

文章永久链接：https://tech.souyunku.com/?p=42181